1. Department of Clinical Nursing, Faculty of Health Science, Wroclaw Medical University, Poland
2. Department of Gerontology and Geriatric Nursing, School of Health Sciences, Medical University of Silesia, Poland
3. Department of Cardiology, Poznan University of Medical Sciences, Poland
4. Department for Internal Medicine and Cardiology, Salzburg University Hospital, Austria
5. Faculty of Health, Sports and Social Work, Inholland University of Applied Sciences, Amsterdam, the Netherlands; Zonnehuisgroep Amstelland, Amstelveen, the Netherlands; Department of Primary and Interdisciplinary Care, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium